Collapsible stove



July 3, 1951 J D. BROWN 2,559,243

COLLAPSIBLE STOVE Filed June 19, 1947 3 Sheets-Sheet 1 INVENToR Jost-PH.D. BRON/Y www ATTORNEY July 3, 195] l J. D. BROWN COLLAPSIBLE STOVEINVENTOR Jos-PH D. BRow/v JKATTORNEY Filed June 19, 1947 July 3, 1951 J.D. BROWN 2,559,243

COLLAPSIBLE STOVE Filed June 19, 1947 3 Sheets-Shee 3 m li iNvENToRJ'osfpn D. Row/v ATTORNEY` Patented July 3, 1951 COLLAPSIBLE STOVEJoseph D. Brown, Eastchester, N. Y., assignor to Poloron Products, Inc.,New Rochelle, N. Y., a corporation of New York Application June 19,19477, serial No. 755,638

17 Claims.

The present invention relates to collapsible stoves and is moreparticularly directed toward collapsible stoves for burning solid fuelsuch as wood or charcoal for outdoor cooking.

The present invention contemplates collapsible stoves made out of sheetmetal parts, all of which are held together by a suitable Wire frame andsuitable Wire hinge pins, the entire stove being capable of beingcollapsed into a small, thin, readily portable unit or extended to forma complete stove with supports for holding its ilre box above the groundand carrying suitable grill members above the iire box to supportcooking utensils or food which is to be cooked directly over the hotfuel. These grill members are arranged to be swung out of the way tofacilitate placing fuel in the re box.

According to the present invention the stove, when in extended position,is very securely locked together so as to be able to support any loadlikely to be placed on the stove. It may be readily opened up orcollapsed as desired, and when in collapsed position, the parts arelocked together with the surfaces likely to become sooty from the use ofthe stove interiorly disposed so that the collapsed stove remains cleanfor handling.

Other and further objects will appear as the description proceeds.

The accompanying drawings show, for purposes of illustrating the presentinvention, an embodiment in which the invention may take form, it beingunderstood that the drawings are illustrative of the invention rather.than limiting the same.

ln these drawings:

Figures l through 7 are diagrammatic perspective views illustrating thesetting up of the stove, Figure 1 being a view of the collapsed stove,Figure 2 a view showing the shifting of one leg into position, Figure 3a View illustrating the shifting of the other leg into position, Figure4 a view illustrating the placing of the legs on a support, Figure 5 thedropping of the fire box into position and locking the legs to the firebox, and Figures 6 andr'l illustrating the opening up of the grillsforming a split top, the latter views being taken at different angles;

Figure 8 is a transverse sectional view on the line 8 8 of Figures 1 and10 showing the stove collapsed;

Figure 9 is a top plan View showing the stove in open position withparts broken away;

Figure 10 is a side elevational view of the collapsible stove in fullyset up position;

Figure 11 is an end View of the stove;

Figure 12 is -a transverse sectional View on the line |2|2 of Figure 9;

Figure 13 is a longitudinal sectional view on the line |3|3 of Figure 9;and

Figure 14 is a longitudinal sectional view on the line |4|4 of Figures 1and 8 showing the stove collapsed.

The collapsible stove shown herein employs two metal leg members 20 and2| which are alike, two like side plates 22 and 23 for a iire box, asingle bottom fire box plate 24 and two like grill members 25, 2B. Theleg members and side plates are carried lon the ends 23 and sides 29 ofa rectangular frame 2l formed of a wire loop whose ends are weldedtogether. The bottom plate is secured to the side plates by hinge pins30. The legs 20 and 2| have hinge knuckles or ears 3| folded around theends 28 of the wire loop. The grill members 25 and 26 have ears orknuckles 32 which pass through notches 33 in the legs and are foldedabout the ends 28 of the wire loop. The re box side plates 22 and 23 arefolded about the sides 29 of the wire loop as indicated at 34. The loweredges of the side plates 22 and 23 have knuckles or ears 35 and thesides of the bottom plate have similar ears 36, these ears receiving thehinge pins 30.

The side plates 22 and 23 have stiffening flanges 38 along the topedges, and stiiening flanges 39 along the ends. The bottom plate 24 ofthe fire box has stifening anges 49 along its ends. The plates 23 and 24have -stiifening beads 4| which extend lengthwise, certain of thesebeads being provided with slots 42 to permit entry of air forcombustion.

The legs 20 and 2| have flanges 43 and stiftening beads 44 and are cutout as indicated at 45 so that each leg has two spaced feet. The grillmembers 25 and 25 are punched to have upper flanges 46 to vrest abovethe side members 29 of the frame and are drawn downwardly as indicatedat 41 so as to t inside the frame. The grill members are punched toprovide elongated holes 48, the material punched out to form these holesbeing pressed down so as to provide narrow inverted channel-shaped ribsor cross-members 49, so that the grill is stiff and strong for thesupport of cooking utensils and the like.

. It will be noted that the leg membersl are in the form of rectangularpanels of sheet metal and of the width and length of the rectangularframe so that they can cover the frameY and folded fire box. Each of theleg plates 20 and 2| is slotted as indicated at 5l) (Figure v13). Alocking plate in the form of a rounddisk 5| is carried von the outsideof eachl leg, and gaclip 52 is carried on the inside of each leg, theplate I and clip 52 being secured together by riveting as indicated at53. The lower ends 54 of the clips are adapted to go through holes 55 inthe ends of the bottom plate 24.

A bail 56 to .facilitate carrying .the collapsed stove may be secured tothe frame ring in a lposition to 'be folded out of the Way for packingor hang free when not in use, also a locking device 51 may be carried byone side plate in a position 4 tal side members, and a re box includingsheet metal side plates wider than one-half the spacing of the sidemembers and pivoted at their upper edges to the side members so as to besupported therefrom and a sheet metal bottom plate pivoted at .its .sideedges to the .lower edges of both the side platessso as to be solelysupported by the side plates, the side plates being swingable upwardlyVinto overlapping relation to bring the bottom to engage the foldedbottom plate, as shown in..

Figure 8. Y

The sheet metal parts are preferablymade 'of aluminum coated steel0.0302 thick, so as `to 'be resistant to corrosion and readily cleanableand light in weight.

When the collapsible stove is collapsed it assumes the form shown inFigure l and may, for example, be approximately 19 inches long, 12inches wide and -ll/2 inches thick. The 'material is sufficientlyresilient to permit the flanges to telescope one another as indicated inFigures 8 and 14. When folded the lclip -52 on one leg is Vable to enterthe notch 45 of the other leg .and engage with the material of thenotched leg-so'as to hold the entire assemblage together -as indicatedin Figure l. Either leg may be on top of the other.

The rst step in putting the device into operation is to support thestove in one hand as indicated in Figure l, then slide the catch hook 52on the under leg so as to release the upper Aleg and this upper leg isswung upwardly and downwardly by the other hand as indicated in Figure2. It then hangs down. The other leg is swung around to the hangingposition as indicated in Figure 3 and the vother leg plate swung down.The two Alegs are then allowed to rest on the ground or other supportand the operator removes his hand from underneath the central part ofthe stove, releases the catch 5l' and allows vthe 'fire box to drop intoposition, shaking it, if necessary. When the iire box is lowered thelocking plates 5| on the outer sides of the legs are then pushed down tobring the clip 52 into the openings 55 in the bottom plate of the rebox-as indicated in the various figures. This locks the legs and firebox together and provides a sturdy structure. The grills can then beswung up as indicated in Figure 6 and all the way over to the outside ofthe legs where they hang down, if desired. Fuel can then be put into thenre box and lighted as usual. The grills may be returned to the upperposition and the stove used for usual cooking operations -eithersup-porting utensils on the lgrills or placing the food to -be broileddirectly on the grills.

The fire may be readily dumped by inverting the stove so that allunburned fuel is discharged.

When the nre box is to be collapsed theroperations are reversed. It willbe noted that all paris of the stove which were in Contact withthe u'elhave now become folded inside, with the excepplate between theoverlapped portions.

2. Afcollapsible stove as claimed in claim l, .wherein Ythe Vside`plates and bottom plate have longitudinally extending reinforcing ribsslitted for air supply.

3. A collapsible stove as claimed in claim l, wherein -the side plateshave stiiening flanges ,alongathe upper edges and along their ends, andthe bottom plate has stiiening flanges along its ends.

4. A collapsible stove for vburning solid fuel comprising .a.rectangular frame having side and end members, fire box including sheetmetal side plates wider than one-half the spacing vof the side `membersand 4pivoted vat their `upper edges to the side members soas to besupported therefrom anda sheet metal bottom plate pivoted atits sideedges to the lower edges of both Vthe side.plates so as-to be solelysupported bythe side plates, the sideplates being swingable upwardlyinto overlapping .relationand bringing the bottom yplate between theoverlapped portions, vand upwardly swingab-legrill members hinged-toopposite-sides of the frame -to permit insertion of iueljand whenlowered .supported on the frameso as to support cooking utensils.

.,5. A collapsible stove --for fburning solid fuel comprising Aavrectangular frame having side members and end members, a fire boxincluding sheet Ametal side `plates widerthan one-half the spacing oftheVside membersand pivoted at their upper edges lto the side members )soas to be supported therefrom-and a sheet metal .bottom plate pivoted atits side edges to thelower edges of vboth-the side plates'so as to besolely supported by the side plates, the side plates being swingableupwardly into overlapping relation to bring the bottom plate between theoverlapped portions,

' and sheet metal end plates pivoted to theend members of the frame toswing from a downwardly `extending vertical position where they abuttheends ofthe side plates vand bottom plate, to Vahorizontal position wherethey areparallel r with one another and outside the collapsed sidetion'of a small spot surrounding the locking Yclip used to lock the twolegs together.

Since it is obvious that the invention may be embodiedA in other formsand constructions within the scope of the claims, I wish it to beunderstood that the particular form shown is but onev of these i and.bottomplate'and locking means Vforulocking each en d plate to the endAof the bottomplate.

6. A collapsible stove as claimed in .claim 5, whereinthe end plates areof substantially the samelength Aasxthe side plates so .as to form legstosupport the fire boxin an elevated position and so asto cover thelength of the re box `when the endplates are folded.

,7. A -collapsible stove .as claimed in claim ,5, having upwardlyswingable grill members hinged to opposite .ends of theframe to permitinsertion of fuel and when lowered supported on the frame so as tosupport cooking utensils.

8. A collapsible stove as claimed in claim 5, wherein said ends carrylocking devices engageablev-with-thebottom of therenbox to lock the endsto the bottoml ofV the re box.

`9. A collapsiblestove as claimed in claim `5,

i wherein the ends vhave stiiening side flanges spaced wider than thewidth of theframe so..as

to pass by the fra/me when folded into collapsed position.

10. A collapsible stove for burning solid fuel comprising a frame havingtwo parallel horizontal side members, and a iire box including sheetmetal side plates wider than one-half the spacing of the side membersand pivoted at their upper edges to the side members so as to besupported therefrom and a sheet metal bottom plate pivoted at its sideedges to the lower edges of both the side plates so as to be solelysupported by the side plates, the side plates being swingable upwardlyinto overlapping relation to bring the bottom plate between theoverlapped portions, and a locking device carried by one side plate andengageable with the other side plate when the plates are in overlappedposition.

11. A collapsible stove for burning solid fuel comprising a horizontalrectangular frame having side members and end members, leg forming endsin the form of rectangular panels of sheet metal pivotally carried bythe end members of the frame and of the width and length substantiallythe width and length of the frame, and a collapsible fire box carried bythe side members of the frame and including downwardly converging sideplates hinged to the side members and a bottom plate hinged at itsopposite edges to both of the side plates, the side plates and bottomplate being foldable to bring them substantially into the plane of theframe, the ends being foldable from normally vertical positions to coverone another and the frame for the entire width and length thereof.

12; A collapsible stove for burning solid fuel comprising a horizontalrectangular frame having side members and end members, leg forming endsin the form of rectangular panels of sheet metal pivotally carried bythe end members of the frame and of the width and length substantiallythe width and length of the frame, a collapsible re box carried by theside members of the frame and including downwardly converging sideplates hinged to the side members and a bottom plate hinged at itsopposite edges to both of the side plates, the side plates and bottomplate being foldable to bring them substantially into the plane of theframe, the ends being foldable from normally vertical positions to coverthe frame for the entire width and length thereof,

and interlocking devices carried by the ends and the bottom plate tosecure them together when the fire box is opened.

. 13. A collapsible stove comprising a rectangular wire loop, sheetmetal leg forming plates of substantially the width and length of theloop and pivoted to the ends of the loop, sheet metal grill memberspivoted to the ends of the loop and having side edges adapted to rest onthe sides of the loop, sheet metal iire box side plates pivoted alongtheir upper edges to the sides of the loop to be supported therefrom, abottom plate pivoted at its side edges to the lower edges of both of theside plates so as to be supported by the side plates, and leg carriedlocks engagea/ble with the bottom plate to lock the legs and re boxtogether, the re box plates being collapsible to substantially the planeof the loop, the legs being also swingable to overlie the collapsed rebox.

14. A collapsible stove comprising a rectangular wire loop, sheet metallegs having ears folded about the ends of the loop, sheet metal grillmembers having ears folded about the ends of the loop and side edgesadapted to rest on the sides of the loop, sheet metal fire box sideplates having along their upper edges ears folded about the sides of theloop and similar ears along their lower edges, a bottom plate havingears receivable between the ears of the lower edges of the side plates,hinge pins passing through the ears of the bottom plate and side platesto hold them together, and leg carried locks engageable with the bottomplate to lock the legs and re boX together.

15. A collapsible stove for burning solid fuel comprising a horizontalelongated rectangular frame, a fire box of the width and length of thelength of the frame and pivotally carried by two opposite sides of theframe but foldable into the plane of the frame, and legs ofsubstantially the length and width of the frame in the form ofrectangular panels of sheet metal pivotally carried by each of the frameends and swingable from leg forming positions wherein they close theends of the fire box to positions where they are on top of one anotherand of the frame to completely cover the folded rebox and frame, theends of the rebox and the leg forming plates having cooperative lockingmeans for securing the leg forming plates to the rebox when the rebox isopened and the plates are in leg forming positions, the locking means onone leg being engageable with the other leg when the legs are on top ofone another.

16. A collapsible stove as claimed in claim 15, having grill memberspivoted to the frame ends with their free ends resting on the framesides to support cooking utensils or swingable upwardly to permitsupplying fuel to the re box.

17. A collapsible stove as claimed in claim 15, wherein the fire box ispivoted to the long sides of the frame and having grill members pivotedto the short sides of the frame with their free ends resting on the longsides of the fralme each adapted to support cooking utensils while theother is swingable upwardly to permit insertion of solid fuel into there box.

JOSEPH D. BROWN.

REFERENCES CITED The following references are of record in the le ofthis patent: l

UNITED STATES PATENTS Number Name Date 1,436,937 Boyle Nov. 28, 19222,122,275y Bitner June 28, 1938 2,152,168 Anderson Mar. 28, 19392,164,835 Pearson July 4, 1939 2,246,440 Hester June 17, 1941

